Wehrhahn, C Department Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics, Max Planck Society;
Wehrhahn, C. (1998). Detection facilitation by collinear stimuli in humans: Dependence on strength and sign of contrast. Vision Research, 38(3), 423-428. doi:10.1016/S0042-6989(97)00141-7.